C8051F715-GQ Silicon Laboratories Inc, C8051F715-GQ Datasheet - Page 171
![IC 8051 MCU 8K FLASH 48-TQFP](/photos/12/16/121648/c8051f715-gq_sml.jpg)
C8051F715-GQ
Manufacturer Part Number
C8051F715-GQ
Description
IC 8051 MCU 8K FLASH 48-TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F71xr
Specifications of C8051F715-GQ
Program Memory Type
FLASH
Program Memory Size
8KB (8K x 8)
Package / Case
48-TQFP, 48-VQFP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Cap Sense, POR, PWM, WDT
Number Of I /o
39
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F7x
Core
8051
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
I2C, SMBus, SPI, UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
39
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F700DK
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1635 - DEV KIT FOR C8051F700
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1619
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F715-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F715-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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27. Oscillators and Clock Selection
C8051F70x/71x devices include a programmable internal high-frequency oscillator and an external oscilla-
tor drive circuit. The internal high-frequency oscillator can be enabled/disabled and calibrated using the
OSCICN and OSCICL registers, as shown in Figure 27.1. The system clock can be sourced by the exter-
nal oscillator circuit or the internal oscillator (default). The internal oscillator offers a selectable post-scaling
feature, which is initially set to divide the clock by 8.
27.1. System Clock Selection
The system clock source for the MCU can be selected using the CLKSEL register. The clock selected as
the system clock can be divided by 1, 2, 4, 8, 16, 32, 64, or 128. When switching between two clock divide
values, the transition may take up to 128 cycles of the undivided clock source. The CLKRDY flag can be
polled to determine when the new clock divide value has been applied. The clock divider must be set to
"divide by 1" when entering Suspend mode. The system clock source may also be switched on-the-fly. The
switchover takes effect after one clock period of the slower oscillator.
Option 4 – CMOS Mode
Option 1 – Crystal Mode
Option 3 – C Mode
Option 2 – RC Mode
XTAL2
VDD
XTAL2
XTAL2
10M
XTAL1
XTAL2
Figure 27.1. Oscillator Options
OSCICL
Circuit
Input
Programmable
Internal Clock
Generator
OSCXCN
Rev. 1.0
OSC
EN
OSCICN
Clock Divider
n
C8051F70x/71x
CLKSEL
Clock Divider
n
CLKRDY
SYSCLK
171
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